Prefetching in CXL-based Server Processors
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Vanavasam, Srikar
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The memory subsystems of modern server processors have undergone significant architectural changes in recent years. Furthermore, emerging technologies such as CXL are poised to become widely adopted in the industry. This work studies how data prefetching in server processors is impacted by these trends and in particular focuses on latency-critical datacenter applications. We show that state-of-the-art data prefetchers are not effective in bandwidth-contained configurations that server processors typically operate. However, we show that data prefetching becomes more important in a CXL-based processor due to the increased memory bandwidth and increased memory access latency.
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Undergraduate Research Option Thesis